Oxobutanedioic acid(328-42-7) IR1

Mass

MS-IW-2629          
oxalacetic acid
C4H4O5              (Mass of molecular ion:    132)

   Source Temperature: 170 °C
   Sample Temperature: 140 °C
   Direct, 75 eV

      12.0       1.0
      13.0       1.5
      14.0       4.9
      15.0      19.9
      16.0       2.9
      17.0       3.2
      18.0      13.7
      25.0       1.7
      26.0       3.5
      27.0       1.3
      28.0      13.7
      29.0       8.9
      31.0       1.1
      40.0       1.2
      41.0       5.8
      42.0      46.3
      43.0     100.0
      44.0      99.4
      45.0      30.0
      46.0       4.3
      53.0       1.9
      56.0       1.7
      60.0       5.8
      69.0      10.1
      70.0       1.5
      71.0       1.1
      87.0      18.2
      88.0      21.9
     132.0       1.1